surface.hpp

/*
 * This file is part of pcb2gcode.
 * 
 * Copyright (C) 2009, 2010 Patrick Birnzain <pbirnzain@users.sourceforge.net>
 * Copyright (C) 2010 Bernhard Kubicek <kubicek@gmx.at>
 * Copyright (C) 2013 Erik Schuster <erik@muenchen-ist-toll.de>
 * Copyright (C) 2015 Nicola Corna <nicola@corna.info>
 *
 * pcb2gcode is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * pcb2gcode is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with pcb2gcode.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef SURFACE_H
#define SURFACE_H

#include <boost/noncopyable.hpp>
#include <boost/array.hpp>
#include <boost/shared_ptr.hpp>
using boost::shared_ptr;

#include <vector>
using std::vector;

#include <glibmm/refptr.h>
#include <gdkmm/pixbuf.h>
#include <glibmm/ustring.h>
using Glib::ustring;

#include "coord.hpp"
#include "mill.hpp"
#include "gerberimporter.hpp"

struct surface_exception: virtual std::exception, virtual boost::exception
{
};

/******************************************************************************/
/*
 */
/******************************************************************************/
class Surface: virtual public boost::noncopyable
{
public:
    Surface(guint dpi, ivalue_t min_x, ivalue_t max_x, ivalue_t min_y,
            ivalue_t max_y, string outputdir);
    void render(boost::shared_ptr<LayerImporter> importer)
    throw (import_exception);

    boost::shared_ptr<Surface> deep_copy();

    void save_debug_image(string);

    vector<shared_ptr<icoords> > get_toolpath(shared_ptr<RoutingMill> mill,
            bool mirror, bool mirror_absolute);
    vector<unsigned int> get_bridges( shared_ptr<Cutter> cutter, shared_ptr<icoords> toolpath );
    ivalue_t get_width_in()
    {
        return max_x - min_x;
    }
    ;
    ivalue_t get_height_in()
    {
        return max_y - min_y;
    }
    ;

    void add_mask(shared_ptr<Surface>);
    void fill_outline(double linewidth);

protected:
    Glib::RefPtr<Gdk::Pixbuf> pixbuf;
    Cairo::RefPtr<Cairo::ImageSurface> cairo_surface;

    static const int procmargin = 10;

    const ivalue_t dpi;
    const ivalue_t min_x, max_x, min_y, max_y;
    const int zero_x, zero_y;
    const string outputdir;

    void make_the_surface(unsigned int width, unsigned int height);

    // Image Processing Methods

    inline ivalue_t xpt2i(int xpt)
    {
        return ivalue_t(xpt - zero_x) / ivalue_t(dpi);
    }
    inline ivalue_t ypt2i(int ypt)
    {
        return ivalue_t(ypt - zero_y) / ivalue_t(dpi);
    }

    inline int xi2pt(ivalue_t xi)
    {
        return int(xi * ivalue_t(dpi)) + zero_x;
    }
    inline int yi2pt(ivalue_t yi)
    {
        return int(yi * ivalue_t(dpi)) + zero_y;
    }

    std::vector<std::pair<int, int> > fill_all_components();
    void fill_a_component(int x, int y, guint32 argb);
    unsigned int grow_a_component(int x, int y, int& contentions);
    inline bool allow_grow(int x, int y, guint32 ownclr);

    void run_to_border(int& x, int& y);
    void calculate_outline(int x, int y, vector<std::pair<int, int> >& outside,
                           vector<std::pair<int, int> >& inside);

    // Misc. Functions
    static void opacify(Glib::RefPtr<Gdk::Pixbuf> pixbuf);

    guint32 clr;
    guint32 get_an_unused_color();
    std::vector<guint32> usedcolors;
};

#endif // SURFACE_H